Apparatus for making glass articles.



N as 9 1. I PATENTED ixo-v. 27 1906.

, 8 9 J. J. POWER.

' APPARATUS FOR MAKING GLASS ARTICLES.

APPLICATION FILED APB-.10. 1900.

2 SHEETS-SHEET 1v THI. NORRIS gzrnzs 00., wunmoruu, D. d.

No. 836,991. PATENTED NOV. 27, 1906.

I J. J. ow-5 APPARATUSFOR MAKING'GLASS ARTICLES.

APPLICATION FILED APR. 10. 1900.

THE nvnms PETERS ca, vlusunlrn'bl l n c.

.UNITED STATES a PATENT OFFICE.

JOHN J. POWER, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGNMENTS, TO THE TOLEDO GLA SS COMPANY, OF TOLEDO, OHIO,

A CORPORATION OF OHIO.

APPARATUS FOFtMAKlNG GLASS ARTICLES- Specification of Letters Patent.

Application filed April 10, 1900. Serial No. 12,278-

Patented Nov. 27, 1906.

To all whom it may concern:

- Be it known that I, JOHN J. POWER, a resident of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Apparatus for Making Glass Articles; and I do hereby declare the following to be a full,

clear, and exact description thereof.

My invention relates to an apparatus for combination of parts, as hereinafter more specifically set forth and described, and particularly pointed out in the claims.

To enable others skilled in the art to which .my invention appertains to construct and use the apparatus, I will describe the same more fully, referring to the accompanying drawings, in which Figure 1 is a side view of the apparatus for. making sheet-glass in connection with a tank-furnace, shown in section. Fig. 2 is a top or plan view of such apparatus, showing the molten glass as being drawn partly through the mold. Fig. 3 is an enlarged plan view of the apparatus, showing the mold opened and the glass drawn entirely through the mold. Fig. 4 is a plan view of the piston employed with the apparatus; and Figs. 5, 6, 7, and 8 are views showing another form of mold and piston for the manufacture of larger sheets of plate, window-light, &c.

Like numerals herein indicate like parts in each of the figures of the drawings.

' The apparatus is shown in connection. with a tank-furnace 1, although it is obvious that the same can be used in connection with a pot located within the ordinary glass-furnace. The tank is represented with the ordinary o ening' or mouth 2, leading up to which are t e tracks '3, upon which is the carrier or carriage 4, which travels upon the tracks 3 by means of the wheels 4, journaled thereon. The carriage 4 is rovided with the roller 5, which is journale. in brackets 5 on the carriage, and is adapted to fit within a space 6, formed between the projections 6 on a mold port-ed by said roller 5, so that said mold 7 7, which is adapted to rest upon and be supcan be easily tilted when desired. The mold 7 is a partible mold formed of the lower half 7 and u per half 7 which are fastened together means of a pin 8 passing through lugs 8 8", formed onthe halves 7 7", respectively. A projection 9, having a stud 9 thereon, extends down from the rear end of the lower half 7 of the mold 7, and this stud is adapted to travel within a groove or slot 10, formed in a curved lever 10, which is pivoted at 11 on the carriage 4 and is provided with a handle 11 thereon. The lower half 7.

of the mold 7 is provided with the mold-cavity 12 therein, and grooves 12 are formed between the flanges 13 13, which terminatebefore they reach the front end of the mold on each side of the cavity 12 and within which is placed asbestos 14 or other suitable noncombustible material. Each half 7 and 7" of the mold 7 is provided with an extra thickness of metal at the front end thereof to form 12 of the mold 7. The head 18 is provided with diagonal openings 18 therein, anda gear face or rack is formed at 18 on the shaft 17, so that the same can en age with i a gear- 1 wheel (not shown) for wor ring the piston 17 in the mold-cavity 12.

The operation of my improved apparatus for manufacturing glassware is as follows: After the grooves 12 in the lower half 7 of the mold-7 have been packed with asbestos, the upper half 7 is then lowered down on the lower half 7, and the two halves 7 7" are bolted together by means of the bolts 16, so

making the sides of the mold 7 airtight. The mold 7 is then placed on the carriage 4, located on the tracks 3 by allowing the space 6 between the projections 6 on the lower half 7 of the mold to fit over the roller 5 on space 6 to the front end of the mold 7 is greaterthan that tothe rearend of'thesame', so that the said mold 7 slightly overbalances itself,' but 1S3l1ld in placeor straight line by the curved lever 10 on the carriage- 4, which is fastened to the stud 9 of the projection 9 on the half 7 through the medium of the slot 10 in said lever 10 engaging with. said stud 9. The piston 17 is then inserted into the cavity 12 of the mold 7, so that the diagonal openings 18 in the head 18 of the same are at the front end of the mold-cavity, as shown in Fi 1. The carriage 4, carrying the mold 7 and piston. 17, is then moved along the tracks 3 to the pot or'tank 1', containin the molten. glass, and the slotted or curved ever 150.:isdrawn down by means-of its handle 11, so causingthe front end of. the mold 7 to be raisedto theposi'tion of an; equilibrium with the rear end: of the mold 7 while the front end: of the mold 7 is entering the mouth or opening 2 in. the pot or tank 1. When the frontend of. the mold 7. has been advanced into the'pot or tank 1 asufiicient distance by the carriage 4, the slotted or curved lever 10 is raised. by its handle 11 and the front end of themold 7 descends into the molten. glass of thepot' or tank 11, submerging itself sufficiently for the molten glass to surround the opening of the mold-cavity 12. in. the front end: of the mold 7, but not to entirely cover the flanges 15. The piston 17 is then. drawn back through the mold-cavity 122. of the mold 7, leaving a vacuum in its trail and causing or permitting the molten: glass to flow up into openings 18 in the head 18 of the piston 17 and into the cavity 12 of the mold 7 and so assume the form: and shape of the mold-cavity 12 by force of gravity and suction. Whenthe sheet of glass has been thus formed, the slotted lever 10 is then lowered, thereby raising the front end of themold. 7 out of the molten glass, when: the carriage 41 can be drawnback and so withdraw the mold 7 and pistoni 1 ,7' from: the pot or tank 1.. Any-glass that may be clinging to: or hanging from the front end of the mold17 may be-sheared off or otherwise removed, after which. the sheet of glassformedwithin the mold-cavity 12. of the mold/7 may be drawn from such cavity 12.by thepiston 117 on account of the glasshaving flowed into the o enings 185' in the head- 18" thereof and the ead 18 removed. from= the completed-sheet of glass, or the-upperhalf 7" of the-mold 7 may be opened by unscrewing the: bolts 1:6%from.engagement with the lower half 7 and the-sheet of glass lifted out of the cavity 12 of the mold 7 and removed from the head 1:8-of the piston 1 7.

On; Figs. 5,6,7, and 8- thereisshown. the form; of mold and. piston. for making large sheets ofplate orwmdow-lights, and in this formthemold 22 is provided with two-extrav cavities 23 23" on each side of the mold 23 proper, the cavity 23 being formed in the upper half of the mold and thecavity 23" being formed in the lower half of the mold, while a piston 24 is provided with three heads 25 2525 thereon, which are adapted to and are capable of being operated within the cavities 23 23 23 of the molds22, respectively. Small perforations or vents 26 are formed withinthe walls 26 and 26 between the cavities 23 23 23 to allow the vapor emitted from the paste, which is spread over the cavity 23' of the mold in the making of plate and window-light, to-be drawn into the cavities 23 and 23", so as not to destroy the vacuum in the mold-cavity 23 and prevent the completion of large sheets of glass unless the same was carried away. By this form of mold and. piston av vaccum is created in all three cavities-2323 23". Thus the vacuum in the cavities 23" and 23 is an auxiliary means for the drawing of the'glass into the cavity 23 and draws off the vapor emitted from the paste through the perforations or vents 26 and permits theformationand completing of a'perfect largesheet of glass. The paste before mentioned is well known in the art and is used on: the molds when it is desired to make sheet-glass having smooth clear surfaces, and it will be understood that where paste is used onthe mold or molds they will be water-cooled, as usual. form of mold and pistonv can: be operated in the same manner as that above given, and it is evident that this piston and the carriage' l, as well as the o eration of the piston 17, can be performed lFy mechanical means and as many apparatus can be used as desired. The opening in. the tank can also be made of any suitable shape or size to permit of any desired mold being inserted therein.

The herein-described manner of connecting the mold with the molten glass by inserting it therein may be-departed' from and the mold connectedwith the molten-glass tank or pot in. any manner,- and various other modifications and changes in the various parts and design of the apparatusmay be resorted to without departing from the spirit of the invention or sacrificing any of its advantages.

It will thus be seen that my improved apparatus for manufacturing solidglass articles is cheap and simple in. its construction and operation, does not require the employment of. any skilled labor,- and greatly cheapens the cost of producing articles in; labor and materials.

What I claim as my invention, and. desire to secure by Letters Patent, is

1. In apparatus for the manufacture of solid glass articles, the combination of a mold, means for drawing the molten glass iinto said mold and thereby give the glass its finished shape, and means within said mold for withdrawing the article therefrom..

2. In apparatus for the manufacture of .solid glass articles, the combination! of a This IIO

mold, means connected to said mold for drawing the molten glass therein and thereby give the glass its finished shape, and means within said mold for withdrawing the article therefrom.

3. In apparatus for the manufacture of solid glass articles, the combination of a mold, means connected to said mold for give the glass its finished shape.

5. In apparatus for the manufacture of solid glass articles, the combination of a mold, means connected to said mold for drawing the molten glass therein by suction and thereby give the glass its finished shape, mechanism for supporting and carrying said mold, and means within said mold for withdrawing the article therefrom.

6. In apparatus for the manufacture of solid glass articles, the combination of a mold, means connected to said mold for drawing the molten glass therein by suction and thereby give the glass its finished shape, a carriage mounted on tracks for supporting and carrying said mold, and means within said mold for withdrawing the article therefrom.

7. In apparatus for the manufacture of solid glass articles, the combination of a mold, means connected to said mold for drawing the molten glass therein by suction and thereby give the glass its finished shape, a carriage mounted on tracks-adapted to support and carry said mold, and mechanism for permitting the tilting of the end of said mold to, within, and from the molten glass.

8. In apparatus for the manufacture of solid glass articles, the combination of a mold, means connected to said mold for drawing the molten glass therein by suction to form the finished article, a carriage mounted on tracks adapted to support and carry said mold by a pivotal connection, and a slotted lever pivoted to said carriage and adapted to engage with a pin on the mold for permitting the tilting of the end of said mold to, within, and from the molten glass.

9. In apparatus for the manufacture of solid glass articles, the combination of a mold, said mold having a main cavity therein, a cavity or cylinder communicating with said main cavity, and a pistonprovided with heads adapted to move within said cavities for drawing the molten glass into the main cavity to form the finished article by suction.

10. In apparatus for the manufacture of solid glass articles, the combination of a mold, means for drawing the molten glass into said mold and thereby giving the glass its finished shape, said mold being formed of two parts and provided with a main cavity therein, said mold having a cavity within each part on each side of the main cavity and provided with vent-holes therein communicating with said main cavity.

11. In apparatus for the manufacture of solid glass articles, the combination with a partible mold having a main cavity therein, said mold having a cavity on each part on each side of the main cavity, and a piston provided with heads thereon adapted to move within the main cavity and side cavities for drawing the molten glass into the main cavity to form the finished article by suction.

12. A glass-dipping machine comprising a traveling dipper-carrier, an upwardly-movable dipper, the dipper consisting of a cylinder and a piston, and means for causing a movement of the piston for drawing in the molten glass to form the finished article.

13. A glass-dipping machine comprising a dipper-carrier movable in a horizontal plane, an upwardly-movable dipper having an open lower end, means for moving the said dipper vertically in relation to a molten-glass vessel,

and means within the dipper for connecting with the molten glass and drawing the same therein. a

14. A glass-dipping machine comprising a dipper-carrier movable in a horizontal plane, an upwardly-movable dipper carried thereby, the said dipper being in the form of a cylinder with an open lower end, a piston movable therein, and means for moving the dipper vertically and the said iston inward and outward in respect to t e said dipper for charging and discharging it.

15. In a glass-machine, a mold having an opening through which the molten glass may be caused to enter, mechanism for dipping the open end of the mold into the mass of molten glass, and a piston for drawing the glaisjl upward through said opening into the mo 16.. In an apparatus for the manufacture of {glass articles, the combination with a mold, of means for drawing the molten glass into said mold and means operatively connected to the mold for withdrawing the article therefrom.

17. In the manufacture of glass articles, the combination of a mold, means connected thereto for drawing the molten glass therein andmeans for withdrawing the article therefrom.

18. In an apparatus of the characterdescribed, the combination of a gatherer having instrumentalities associated therewith for drawing the molten glass therein and Withdrawing the article therefrom.

19. In an apparatus for the manufacture of sheet-glass, the combination of a mold, hav- IIO 22. In an apparatus for the manufacture of solid glass articles, the, combination of a mold, means for drawing molten glass into said mold and thereby give the glass its finished shape, and means for drawing vapor from the mold while the molten glass is being drawn therein.

In testimony whereof I, the said JOHN J. POWER, have hereunto set my hand.

JOHN J. POWER. Witnesses:

J. N. Comm, J. L. TREFALLER. 

